Systems and methods for improved uptime for network devices

ABSTRACT

Systems and methods for remotely resetting networked devices is disclosed. The system can comprise a primary network connection and a secondary network connection to provide communications redundancy. The system can also include physical connections between networked devices to enable devices to be reset regardless of the type of error. The method can include monitoring one or more parameters of a device to determine what type of error is occurring and what action to take. The system can enable a first computer (or other electronic device) to restart applications, adapters, and services on a second computer (or other electronic device). The system can also enable the first computer to reset or restart the second computer. The system can enable networked computers to monitor and restore operation to other computers on the same network without human intervention.

BACKGROUND

Countless machines exist that are connected to one or more networks. Many computers are connected to an intranet, an extranet, and/or the Internet. These machines may be networked merely for communications purposes, or may be networked to work in concert with each other. Server banks exist, for example, in which multiple computers are networked together to form a single databank or to provide cloud computing services. Multiple machines may also be networked together to form test environments to enable new software or hardware components to be tested prior to widespread distribution.

The advent of home and cellular networks, such as 802.11x networks, has enabled countless additional devices to connect to home networks and the Internet, among other things. Thermostats, refrigerators, and televisions, for example, may all be network enabled to provide online content, fault diagnosis, and updates. Indeed, many new vehicles, such as the Tesla Model S, can be diagnosed and updated via a cellular data connection.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed description is set forth with reference to the accompanying figures. In the figures, the left-most digit(s) of a reference number identifies the figure in which the reference number first appears. The use of the same reference numbers in different figures indicates similar or identical items or features.

FIG. 1 is a schematic of a plurality of a ring topology, or “daisy-chain,” of networked devices using a signal and response protocol to determine the health of the devices, in accordance with some examples of the present disclosure.

FIGS. 2A and 2B are flowcharts depicting a method for analyzing and restoring access to a device that has lost communications, in accordance with some examples of the present disclosure.

FIG. 3 is a schematic of a plurality of networked devices using a health signal and response signal to determine the health of the devices, in accordance with some examples of the present disclosure.

FIG. 4A is a schematic of a first electronic device sending a health signal to a plurality of electronic devices in communication with the first device, in accordance with some examples of the present disclosure.

FIG. 4B is a schematic of the first electronic device receiving a response signal from the plurality of electronic devices in communication with the first electronic device, in accordance with some examples of the present disclosure.

FIG. 5A is a schematic of the first electronic device in electrical communication with a second electronic device via a solenoid, in accordance with some examples of the present disclosure.

FIG. 5B is a schematic of the first electronic device in electrical communication with a second electronic device via a relay, in accordance with some examples of the present disclosure.

FIG. 6 is a component level schematic for the plurality of devices in the system, in accordance with some examples of the present disclosure.

DETAILED DESCRIPTION

Examples of the present disclosure relate generally to systems and methods for resetting networked devices that have become inoperable and/or unreachable. The system can include a number of secondary communications channels and/or physical connections between networked devices. In some examples, multiple devices can be “daisy-chained” such that each device is responsible for the next device in the network. In other examples, multiple devices can each monitor multiple other devices, with each device individually capable of resetting one or all of the networked machines.

In some examples, the system can include a secondary communication channel, for example, to avoid a degraded or contested primary communication channel. In other examples, the system can utilize a physical connection to directly reset devices in the network. The system can enable a machine in a network to monitor one or more parameters of one or more other machines in the network and evaluate if a reset, restart, power cycle, or other action is necessary.

To simplify and clarify explanation, the disclosure is described herein as a system and method for analyzing, tracking, and fixing issues related to the processes and connectivity of networked electronic devices, and specifically “computers.” One skilled in the art will recognize, however, that the disclosure is not so limited. The system can also be used, for example and not limitation, with other types of devices and machines with at least one form of communication. In addition, the disclosure provided below is related to current communications technologies, such as wireless networks (e.g., 802.11x), cellular technologies (e.g., 2G, 3G, 4G, and 4G LTE (Long Term Evolution)), and near-field communications (e.g., Bluetooth®) but is equally applicable to other network technologies, including technologies developed after this disclosure. In addition, while much of the disclosure describes actions or relationships between “a first electronic device” and “a second electronic device,” this is not intended to imply a directional relationship or to exclude additional electronic device (e.g., “a third electronic device” or “a fourth electronic device”) or any other network connected electronic devices such as, for example, computers, servers, cell phones, GPS receivers, or tablets. Indeed, the system could be used on many networked devices including, but not limited to, home automation, wearable devices, and other connected devices (e.g., the so-called internet of things (IoT)).

The metrics, methods, and steps described hereinafter as making up the various elements of the present disclosure are intended to be illustrative and not restrictive. Many suitable applications and networks that would perform the same or a similar function as the systems described herein are intended to be embraced within the scope of the disclosure. Such other systems and methods not described herein can include, but are not limited to, systems, networks, and technologies that are developed following the disclosure.

As discussed above, many electronic and electro-mechanical devices are now network enabled. As a result, these devices can communicate with other devices, with the Internet, and with support services. These devices may be able to provide error codes and other data to a support site, for example, and receive updates, configuration changes, or repairs (e.g., “patches”) via the network connection.

Of course, it is common for many networked devices to become unreachable. This may be due to physically connectivity issues, for example, network adapter issues, or processor issues, among other things. An error in computer code or a virus, for example, can cause a processor, microprocessor, or memory to enter an infinite loop causing the device to become inoperable or unreachable. Similarly, network adapters (e.g., 802.11x adapters) can become disconnected due to conflicts (e.g. hostname, IP address, or port collisions) with other devices, among other things.

Regardless of the cause, when a device becomes disconnected from the network, it is no longer possible to remotely access the device. As a result, it is often necessary for a worker to physically reset the device. This can be achieved in some cases by restarting the device via the operating system (OS), but sometimes requires a “hard reset”—i.e., physically cycling the power of the device.

To this end, examples of the present disclosure can comprise systems and methods for monitoring, diagnosing, and resetting devices. The system can include a number of configurations to enable devices to monitor the parameters of one or more other devices to determine when a device needs to be reset. The system can utilize secondary communication channels, including additional physical connections, to remotely reset devices that have otherwise become uncommunicative or disabled.

As shown in FIG. 1, electronic devices 105 (e.g., computers, tablets, cell phones, and other electronic devices) are often networked in a test environment 100 (or indeed, in many environments) to enable software and hardware providers to test and refine new software or hardware components prior to their widespread release. In this manner, errors and incompatibilities can be identified and addresses in an isolated environment. If, for example, a new hardware or software component causes another existing hardware or software component to fail, then the incompatibility can be identified and resolved before the product is released. This reduces problems experienced at the consumer level, increasing customer satisfaction and reducing costs.

When these failures occur, it can be useful to reset a first electronic device 105 a that has a problem to test whether the problem reoccurs or is an anomaly. If the first electronic device 105 a has lost connectivity, however, or if the first electronic device 105 a is “locked up,” this can require a physical reset, or “hard reset,” (often called a “reboot” as opposed to a “restart”) of the first electronic device 105 a first electronic device 105 a to restore communications between the first electronic device 105 a and the other electronic devices 105 b-105 f in the test environment 100. This requires the power button on the first electronic device 105 a to be depressed, or the power to be interrupted, for a predetermined amount of time (e.g., 5 seconds) to cause the first electronic device 105 a to power off. The power button must then be depressed a second time to cause the first electronic device 105 a to reboot. It can be inconvenient and time consuming, however, for a worker to physically perform the reset operation, particularly if it happens at 2 AM or if the machine is located in a remote location.

In some examples, as shown, the electronic devices 105 can be configured in a “daisy-chain” configuration. Note that, while shown as a physical daisy chain, this configuration could also be achieved virtually (e.g., the electronic devices 105 can be arbitrarily assigned an address that achieves similar results as if the machines were physically connected sequentially.” In such a topology, each electronic device 105 is responsible for the “next” device in the test environment 100. For example, a first electronic device 105 a monitors a second electronic device 105 b, the second electronic device 105 b monitors a third electronic device 105 c, and so on. In this manner, each electronic device 105 is responsible for one other electronic device 105 and each has one electronic device 105 responsible for it.

In some examples, the electronic devices 105 can utilize at least two communications channels. For example, electronic devices 105 can be connected via a hardwired Ethernet connection 110 (i.e., with Ethernet cables), and a wireless connection 115 (e.g., 802.11x). In this manner, if the first electronic device 105 a becomes disconnected from one communication channel, (e.g., the Ethernet connection 110), the other electronic devices 105 b-105 f may nonetheless be able to communicate with the first electronic device 105 a via the wireless connection 115, for example. In this configuration, a second electronic device 105 b may be able to restart the Ethernet network adapter on the first electronic device 105 a via wireless remote administration, rather than having to completely restart or power cycle the first electronic device 105 a.

In this configuration, the first electronic device 105 a can send a signal (“SIG”) 120 a to the second electronic device 105 b via the Ethernet connection 110 to determine if the second electronic device 105 b is operating normally. If the first electronic device 105 a receives an acknowledgement (“ACK”) 120 b, then the first electronic device 105 a has determined that the second electronic device 105 b is operating properly and that the Ethernet connection 110 interface is functioning.

If, on the other hand, the first electronic device 105 a does not receive the ACK 120 b from the second electronic device 105 b, the first electronic device 105 a has determined that either (1) the Ethernet connection 110 is not functioning (2) the network adapter for the first electronic device 105 a is not functioning or (3) the second electronic device 105 b is not functioning in some manner.

Embodiments of the present disclosure, therefore, can comprise a method 200 for monitoring and resetting computers, and other electronic devices, when such communication disruptions occur. As mentioned above, electronic devices 105 can become uncommunicative for a variety of reasons. Computers can lose their network connections or adapters, they can become stuck in a loop causing the processor and/or memory to stop functioning, or they can be affected by viruses and other malware.

In many cases, simply restarting the offending network adapter, for example, can return the electronic device 105 to normal operation. In other examples, the electronic device 105 may need to be restarted via OS control mechanisms. In still other cases, such as when the processor and/or memory corruption have caused the OS to become non-responsive, the computer may need to be power cycled, or rebooted.

As shown in FIG. 2A, therefore, in order to prevent the method 200 itself from becoming stuck in a loop, at 205, the method 200 can begin by setting several counters to a value of 1. Each of the counters can be responsible for tracking the ever escalating corrective actions discussed below. To this end, M can be used to track the number of times a particular communications channel has been reset/restarted. Similarly, N can be used to track the number of times the second electronic device 105 b has been restarted and X can track the number of times the second electronic device 105 b has been rebooted. The counter can enable the method 200 to escalate its response based on the number of times the method 200 has attempted to resolve the problem using each type of response.

At 210, the first electronic device 105 a can send a SIG 120 a to the second electronic device 105 b via a primary communication channel (e.g., Ethernet, wireless, or Bluetooth®) to determine if the second electronic device 105 b is operating normally. At 215, the first electronic device 105 a can determine whether an ACK120 b was received from the second electronic device 105 b. If an ACK120 b was received, the method 200 ends and the second electronic device 105 b is assumed to be operating properly. In other words, if the network adapter for the second electronic device 105 b was down, the processor was locked up, or the memory was compromised in some way, for example, it is unlikely that the second electronic device 105 b would respond properly to the SIG 120 a. The method 200 can be set to repeat periodically (e.g., every 1, 5, or 10 minutes) or to initiate in response to a particular action or data point (e.g., an overheating processor, as discussed below).

At 220, if, on the other hand, the ACK 120 b is not received from the second electronic device 105 b, the first electronic device 105 a can send a SIG 120 a via a second communication channel. For example, if the first SIG 120 a sent via the Ethernet connection 110 was not acknowledged, the second SIG 120 a can be sent via the wireless connection 115, or vice-versa. Of course, the specific communications channels are somewhat irrelevant as long as they are sufficiently distinct in some way (e.g., use a different cable, different network adapter, and/or different communications protocol). So, the two connections could both be Ethernet connections 110, for example, as long as they use different cables, network adapters, and/or routers. Conversely, if both connections use the same cable and/or the same network adapter, then failure of one connection could also cause failure of another in the same way at the same time. Either of the connections could also comprise, for example, a cellular connection, Bluetooth® (or other near-field) connection, landline, or infrared connection.

At 225, the method 200 can determine if a second ACK 120 b was received from the second electronic device 105 b. As before, if the second ACK 120 b is received, the first electronic device 105 a can safely assume that the second electronic device 105 b is operating properly with the exception of the primary communications channel disruption. The first communications channel disruption may be caused by hardware or software failure, physical medium disconnection, or any other service interruption. In some cases, however, simply stopping and restarting the network adapter, drivers, services, and/or processes associated with the first communication channel may resolve the issue and restore connectivity.

At 230, to ensure that the method 200 does not endlessly try to reset the first communication channel, the first electronic device 105 a can check to see if M≦1—i.e., that the method 200 has not already tried resetting the first communication channel. If this is the first attempt, for example, M=1. At 235, the method can increase M by 1 (M=2). At 240, the first electronic device 105 a can send a command to the second electronic device 105 b to reset the network adapter for the first communications channel.

As mentioned above, the first electronic device 105 a can send a command to the second electronic device 105 b to restart the network adapter, services, and/or processes associated with the first communication channel (among other things). If the first communication channel used was the Ethernet connection 110, for example, the first electronic device 105 a can tell the second electronic device 105 b to restart its Ethernet adapter. The method 200 can then restart at 210 and recheck the first communications channel. At 215, if the return ACK 120 b is now received via the first communications channel, then the issue has been resolved and the process ends. Because only the first communications channel was reset, the issue has been resolved without second electronic device 105 b system restart or reboot, thus minimizing downtime and maintenance on the second electronic device 105 b.

If the communications channel has already been reset (M≧2), at 245, the method 200 can determine if N≦1 (i.e., determine if the second electronic device 105 b has already been restarted in an attempt to resolve the problem). If N≦1, at 250, the method can increase N by 1 (N=2). At 255, the first electronic device 105 a can send a command to the second electronic device 105 b to restart. As discussed below, in some examples, this can be achieved using a physical connection between the first electronic device 105 a and the second electronic device 105 b, a command to the OS of the second electronic device 105 b, kernel or BIOS level instructions, etc. The method 200 can then return to enable the first electronic device 105 a to resume connectivity checks with the second electronic device 105 b. Restarting the computer, or other device, resolves a large portion of problems that these devices encounter. If a processor is caught in a loop, or an out of memory situation exists, for example, restarting the computer will—at least temporarily—resolve many of these issues.

At 260, if the method 200 has determined that the second electronic device 105 b has already been restarted, the method 200 can then determine if the second electronic device 105 b has been rebooted (i.e., if X≦1). At 265, if the method 200 determines that the second electronic device 105 b has not yet been hard rebooted, X can be increased by 1 (X=2). At 270, the first electronic device 105 a can send a command to reboot the second electronic device 105 b. As discussed below, this can be accomplished with software or hardware, and may involve commands provided at the kernel level or physical control from an external electronic device, such as a relay or solenoid.

At 210, the method can return to recheck the connectivity between the first electronic device 105 a and the second electronic device 105 b. If the issue is resolved, the method 200 ends and periodic connectivity monitoring resumes. If, on the other hand, the issue is still not resolved, at 275, the first electronic device 105 a can create and send an error report. The error report can be sent to IT personnel, for example, or logged in a central repository. In this case, however, when the error report is sent, the usual first steps—restarting the device interface (e.g., network adapter) that is not working, restarting the computer, or power cycling the computer—have all been completed. This automated process will resolve a vast majority of problems without any additional input. For those problems that cannot be resolved automatically, diagnosis is expedited because the technician knows that at least these preliminary steps have already been taken.

Of course, any part of the method 200 could be repeated more than once by simply changing the counter numbers (e.g., M, N, and X). For example, if it was desirable to try each solution—restarting the network adapter, restarting the computer, and rebooting the computer—twice, the threshold could simply be changed to M (or N or X)≦2. Indeed, any of the solutions could be performed any number of times by simply changing the threshold for each counter separately.

Of course, in some examples, a passive configuration could be used. In other words, rather than using the active communications between the electronic devices 105 described above, the electronic devices 105 could each monitor the communications channels 110, 115 for activity. If, for example, the first electronic device 105 a detects no activity on the primary communications channel (e.g., the Ethernet connection 110), the first electronic device 105 a can take a series of escalating steps, similar to those described above.

So, for example, if the first electronic device 105 a detects no activity on the Ethernet connection 110, the first electronic device 105 a can assume that either (1) it has a communication problem with at least its Ethernet connection or (2) the Ethernet connection itself is inoperative—i.e., it is unlikely that all of the electronic devices 105 would have a network adapter problem, for example, at the same time. In this situation, the first electronic device 105 a can first try the escalating steps described above (e.g., restart adapter, restart, reboot) in an effort to resolve the issue. If this fails to resolve the issue, the first electronic device 105 a can create and send an error report.

Again, the error report can be sent to IT personnel, for example, or logged in a central repository. In this case, however, when the error report is sent, the usual first steps—restarting the device interface (e.g., network adapter) that is not working, restarting the computer, or power cycling the computer—have all been completed. This automated process will resolve a vast majority of problems without any additional input. For those problems that cannot be resolved automatically, diagnosis is expedited because the technician knows that at least these preliminary steps have already been taken.

As shown in FIG. 3, in some examples, the system 300 can comprise a plurality of electronic devices 105 connected via one or more communications channels 110, 115 where each electronic device 105 is in bidirectional communication (i.e., each computer can send and receive data) with every other electronic device 105 in the system 300. In this configuration, every electronic device 105 can check on the health of every other electronic device 105. In addition, each electronic device 105 can also remotely control the other electronic devices 105 when problems occur, as discussed below.

As shown in FIG. 4A, in some examples, the first electronic device 105 a can send the health signal 405 to the other electronic devices 105 b-f. The health signal 405 can be a message, code, authentication key, token, or other communication to inform the other electronic devices 105 b-f that the first electronic device 105 a is operating properly. In other words, at the most basic level, if the first electronic device 105 a is able to send the health signal 405, then the first electronic device 105 a minimally has at least an operable network adapter, processor, and usable memory. Each electronic device 105 can periodically send the health signal 405 to all of the electronic devices 105 in the system 300.

As shown in FIG. 4B, after sending a health signal 405 from the first electronic device 105 a, for example, the remaining electronic devices 105 b-f can then send a “message received,” or confirmation signal 410, to the first electronic device 105 a. As with the health signal 405, the confirmation signal 410 can be a message, code, authentication key, token, or other communication that confirms that the other electronic devices 105 b-f have received the health signal 405 from the first electronic device 105 a.

This serves two purposes. The first is that it informs the first electronic device 105 a that its network adapters are working properly. In other words, if the first electronic device 105 a is able to both send and receive messages, it is clearly still connected to the system 300 with a functioning network adapter. Interestingly, and for the same reason, the confirmation signal 410 also informs the first electronic device 105 a that the other electronic devices 105 b-f are healthy (at least to the same extent). In this manner, if the first electronic device 105 a does not receive a confirmation from a second electronic device 105 b, for example, the first electronic device 105 a can send a command to restart the network adapter on the second electronic device 105 b, for example, or to restart or reboot the second electronic device 105 b, or take other action. In some examples, the first electronic device 105 a may wait until the second electronic device 105 b misses a predetermined number (e.g., 2 or 3) of confirmation signals 410 (or health signals 405) to take action.

If, on the other hand, the first electronic device 105 a does not receive any confirmation signals 410, the first electronic device 105 a first electronic device 105 a can assume, for example, that, at the least, it has a network adapter problem. As a result, the first electronic device 105 a can take a number of escalating steps in an effort to correct the problem.

Initially, the first electronic device 105 a can try restarting the active network adapter(s). In other words, if the Ethernet adapter for the first electronic device 105 a has simply stopped working temporarily, then restarting just the network adapter may be sufficient to correct the problem. If this is ineffective, the first electronic device 105 a can then escalate by restarting additional applications or services, and then finally to restart or reboot the system, if necessary. In some examples, as discussed below, the first electronic device 105 a can consult a task manager, or similar application, to determine which applications or services may be experiencing issues.

In other examples, the first electronic device 105 a can initially try a secondary connection channel to determine if the problem is related to the primary connection channel. So, if the first electronic device 105 a was initially connected using the Ethernet connection 110, the first electronic device 105 a can first try sending another health signal 405 via the wireless connection 115. If the first electronic device 105 a then receives the confirmation signal 410 over the secondary wireless connection 115, the first electronic device 105 a can initially restart the network adapter associated with the Ethernet connection 110 and resend the health signal 405 via the Ethernet connection 110. If the first electronic device 105 a then receives the confirmation signal 410 over the primary Ethernet connection 110, the first electronic device 105 a knows it has resolved the problem.

If, on the other hand, the first electronic device 105 a does not receive the confirmation signal 410 via either the primary or secondary interface, the first electronic device 105 a can then take a series of escalating steps to resolve the issue. In some examples, the first electronic device 105 a can attempt to restart various services or processes using a task manager, or similar utility. After each attempt, the first electronic device 105 a can send another health signal 405 to check for a confirmation signal 410. Ultimately, if no resolution is found, the first electronic device 105 a can continue to escalate to system restart and then reboot, if necessary. Many, if not most, issues with electronic devices 105 can be resolved, at least temporarily, by restarting the electronic device 105.

Each of the electronic devices 105 can be programmed to send one or more health signals 405 at startup to ensure the electronic device 105 has properly started and that the network adapters, for example, are functioning properly. Each electronic device 105 can include a delay at startup, for example, to enable the network adapters and other services to start internally and on the other electronic devices 105. So, for example, the first electronic device 105 a may not send out a first health signal 405 for a predetermined amount of time (e.g., 2 or 3 minutes) to prevent false positives caused by the first electronic device 105 a or other electronic devices 105 b-f starting up. In some examples, system uptime metrics can be utilized to further reduce false positives associated with system startup.

The health signal 405 enables the electronic device 105 to monitor its own health which reduces complexity and increases security. In other words, because the health signal 405 enables the electronic device 105 to essentially monitor itself, the commands associated with trying to resolve the problem can be made internally. This reduces the risks associated with providing access to sensitive areas of the electronic device 105 to external electronic devices 105 (e.g., the BIOS). Of course, if the processor or memory of the electronic device 105 is locked up, or the electronic device 105 is otherwise unable to send the health signal 405, redundant external methods can be provided. Indeed, in some examples, the electronic devices 105 can be part of a closed network, thus reducing or eliminating security concerns around remote access from external devices. In this case, each electronic device 105 may be granted administrative access to every other electronic device 105 to enable restarts and reboots to be initiated externally.

In some examples, as shown in FIGS. 5A and 5B, the system 500 can include a physical connection 505 between the electronic devices 105. In other words, the first electronic device 105 a, for example, can be in communication with a device 505 that is physically connected to the second electronic device 105 b. In the case where the second electronic device 105 b is locked up due to memory, processor, or other issues, and can no longer receive software commands, the first electronic device 105 a can restart or reboot (i.e., power cycle) the second electronic device 105 b.

As shown in FIG. 5A, when all of the electronic devices 105 are in close proximity (e.g., in a test environment or server bank) or when additional security is desired, the physical connection 505 can comprise a solenoid 505 b, or other mechanical or electro-mechanical device in physical communication with the second electronic device 105 b. In some cases, the second electronic device 105 b may require a power button 520, or other switch, to be physically activated (e.g., depressed) in order to restart or reboot. In some examples, depressing the power button 520 for a first predetermined amount of time (e.g., 1, 2, or 5 seconds) can enable the second electronic device 105 b to restart, while depressing the power button 520 for a second, longer predetermined amount of time (e.g., 5, 10, or 20 seconds) can enable the second electronic device 105 b to reboot.

To this end, in some examples, the first electronic device 105 a can provide power to the coil 525 of the solenoid 505 b to activate it. The solenoid 505 b can comprise, for example, a push-pull solenoid or linear actuator positioned proximate to the power button 520 of the second electronic device 105 b. When the first electronic device 105 a detects a problem with the second electronic device 105 b, for example, or does not receive a health signal 405 within a predetermined amount of time (e.g., within 1, 3, or 5 minutes), the first electronic device 105 a can provide power to the solenoid 505 b, causing the plunger 530 to move from a first, retracted position to a second, extended position, pushing the power button 520 on the second electronic device 105 b. In some examples, the solenoid 505 b can be mounted to the second electronic device 105 b or to a bracket proximate the second electronic device 105 b to provide access to the power button 520.

Providing physical access between the first electronic device 105 a and the second electronic device 105 b can enable the electronic devices 105 to restart and/or reboot without providing external administrative access to sensitive areas of the electronic device 105. In other words, the first electronic device 105 a can restart and/or reboot the second electronic device 105 b without access to the second electronic device's 105 b OS, kernel of the OS, or the BIOS by simply pressing the power button 520. Using a solenoid 505 b, or other physical device (e.g., linear actuator, pneumatic solenoid, etc.), enables this function to be accessed remotely, without intervention from the user. Thus, the second electronic device 105 b can be restarted or rebooted by the first electronic device 105 a despite the fact that the electronic devices 105 may be situated in different locations.

In other examples, as shown in FIG. 5B, the first electronic device 105 a can be in electrical communication with a relay 505 a connected to the power supply 510 of the second electronic device 105 b. The relay 505 a can be normally open (NO) or normally closed (NC). If the relay 505 a is NO, the first electronic device 105 a can provide a voltage source (e.g., 12 volts) to the coil 515 a of the relay 505 a to provide power at the output 515 b of the relay 505 a. Of course, the relay 505 a could also be an electronic or solid state relay that requires only a small voltage source (e.g., 3.3 or 5 volts) to be activated. In this configuration, the first electronic device 105 a can communicate with a microcontroller or other electronic device (e.g., Arduino or Raspberry Pi), to control the relay 505 a. The relay 505 a, in turn, provides power to the power supply 510 of the second electronic device 105 b. If the first electronic device 105 a does not receive a health signal 405 from the second electronic device 105 b, for example, the first electronic device 105 a can remove the electrical signal from the coil 515 of the relay 505 a, disconnecting the power supply 510 of the second electronic device 105 b. After a predetermined amount of time (e.g., 10, 20, or 30 seconds), the first electronic device 105 a can reapply the electrical signal to the coil 515, powering the second electronic device 105 b back on.

If the relay 505 a is NC, on the other hand, the second electronic device 105 b receives power from the relay 505 a in the normal case. If the predetermined failure criteria are met and other resolution methods unsuccessful, the first electronic device 105 a provides power to the coil 515 of the relay 505 a, which interrupts the power to the power supply 510 on the second electronic device 105 b. In this manner, power is only required momentarily at the coil 515 to disconnect it, meaning that the relay 505 a is “off,” or not energized the majority of the time. This can reduce energy consumption and heat buildup and increase the life of the relay 505 a, among other things.

In some examples, all of the electronic devices 105 may be part of a closed, secure environment. In a test environment, for example, the electronic devices 105 may be linked by two or more physical or electronic connections, but isolated from other networks and computers. For example, the electronic devices 105 may be linked by an Ethernet cable and a Bluetooth® connection within a test environment. The electronic devices 105 may be networked with each other, but without contact to other computers or external networks (e.g., the Internet or an intranet). In this configuration, due to limited external security threats, each electronic device 105 can be given BIOS or kernel level access, for example, to at least one other electronic device 105. second electronic device 105 b

In this configuration, if the first electronic device 105 a detects a problem with the second electronic device 105 b, the first electronic device 105 a can simply send a command to restart, reboot, or to restart and then reboot. Because the first electronic device 105 a has low-level administrative access (e.g., at the kernel or BIOS level), the second electronic device 105 b simply receives the command to restart or reboot as if the system call, key sequence (e.g. control-alt-delete buttons), or the power button, respectively, had been depressed. In other words, to the second electronic device 105 b, there is no difference between receiving these commands from the first electronic device 105 a via the Ethernet connection and the commands being directly input on the second electronic device 105 b(e.g., with keyboard inputs or buttons physically activated).

Of course, other electrical, electro-mechanical, or computer-based solutions could be used for remote control. In some examples, a microcontroller, such as an Arduino or Raspberry Pi could be used to communicate with the electronic devices 105 and to control one or more relays 505 a or solenoids 505 b, as discussed above. In other examples, the first electronic device 105 a could be a server responsible for the other electronic devices 105 b-f. In this configuration, the first electronic device 105 a could monitor all of the other electronic devices 105 b-f, for example, and the first electronic device 105 a could be monitored by a single worker to centralize the monitoring process.

As shown in FIG. 6, the networked electronic devices 105 can comprise a number of components to enable each electronic device 105 to monitor and control at least one other electronic device 105 in the network. As discussed below, each electronic device 105 can comprise memory 602 configured to include at least a task manager 604, an external power control module 606, and one or more messaging protocols 608. Also, each electronic device 105 can include one or more processor(s) 610, removable storage 612, non-removable storage 614, transceivers 616, output device(s) 618, and input device(s) 620. The electronic devices 105 may additionally contain a policy engine to receive, create, transmit, and manage the various messages and commands.

In various implementations, the memory 602 can be volatile (such as RAM), non-volatile (such as ROM, flash memory, etc.), or some combination of the two. The memory 602 can also comprise a computer and/or task manager 604 similar to, or the same as, those found in the OS. In some examples, the task manager 604 can enable the electronic device 105 to monitor the performance of at least one other electronic device 105 in the network. In some examples, the task manager 604 can monitor processor 610 usage to detect abnormal or suspicious usage patterns. If, for example, the first electronic device 105 a detects a prolonged period in which the processor 610 of the second computer is at a predetermined level of utilization (e.g., 80-100%), the first electronic device 105 a can restart or reboot the second electronic device 105 b. Similarly, if the second electronic device 105 b has prolonged periods of higher than normal memory usage at a predetermined level (e.g., 80-100%), then the first electronic device 105 a can restart or reboot the second electronic device 105 b. In some examples, the task manager 604 can detect which application or process is causing higher than normal processor or memory usage and stop or restart the offending application or process.

In some examples, regardless of the actual memory or processor usage, the first electronic device 105 a can detect that the processor or memory usage for the second electronic device 105 b is simply higher than normal. In other words, if the processor normally operates around 30% and the memory around 20% usage, for example, then a prolonged spike above, for example, 60% and 40% (e.g., double), respectively, could indicate a problem. In some examples, the first electronic device 105 a could also utilize additional hardware sensors to detect abnormal conditions (e.g. excessively high processor temperatures) in the second electronic device 105 b for this purpose. In some examples, the first electronic device 105 a can further comprise an algorithm to detect abnormal resource usage in the second electronic device 105 b.

In some examples, the memory 602 can also include an external power control module 606. As discussed above, the external power control 606 can enable each computer to restart or reboot at least one other electronic device 105 in the network. In some examples, the external power control module 606 can apply or remove a power signal to a relay 505 a or solenoid 505 b, for example, to directly control the power of another electronic device 105. In other examples, the power control module 606 can send a command from the first electronic device 105 a to the second electronic device 105 b at the OS, kernel, or BIOS level to cause the second electronic device 105 b to restart or reboot.

In some examples, the memory 602 can also comprise a messaging protocol module 608. As discussed above, rather than directly monitoring each electronic device 105, the electronic devices 105 can instead rely on messages, tokens, or signals 120 to provide status reports. For example, the first electronic device 105 a can send a SIG 120 a to the second electronic device 105 b and the second electronic device 105 b can respond with an ACK120 b. In other examples, each electronic device 105 can be responsible for the next electronic device 105 in a daisy-chain style configuration. As discussed above, each electronic device 105 can restart components (e.g., network adapters), services, or applications for at least one other electronic device 105 in an attempt to restore functionality for a malfunctioning computer without outside (e.g., human) intervention.

In other examples, the messaging protocol module 608 can involve sending a health signal 405 from the first electronic device 105 a to the remaining electronic devices 105 b-f. In response, each of the remaining electronic devices 105 b-f can send a confirmation signal 410 back to the first electronic device 105 a. In this case, the messaging protocol module 608 can dictate what action is to be taken when an electronic device 105 fails to respond to a health signal 405 appropriately. In some examples, the messaging protocol module 608 can dictate that the first electronic device 105 a act after a predetermined number (e.g., 1, 2, or 5) of missed confirmation signals 410 from the second electronic device 105 b. In some examples, the messaging protocol module 608 can dictate that the first computer 105 a act after a predetermined number (e.g., 1, 2, or 5) of missed health signals 405 from the second computer 105 b

In some examples, the action taken may vary based on which type of signal 405, 410 is missing. In other words, if the second electronic device 105 b is sending health signals 405, but not confirmation signals 410, this may indicate that the second electronic device 105 b has a network adapter problem allowing it to transmit, but not receive, communications. In this case, the first electronic device 105 a may first restart the network adapter for the second electronic device 105 b, or try another communication channel. If, on the other hand, the second electronic device 105 b is not sending health signals 405 or confirmation signals 410, the second electronic device 105 b may require a network adapter reset or, if fully non-responsive, a restart or reboot. In this case, the first electronic device 105 a can first restart the network adapter for the second electronic device 105 b and then escalate as necessary.

In some implementations, the processor(s) 610 can comprise a central processing unit (CPU), a graphics processing unit (GPU), or both a CPU and a GPU, or any other sort of processing unit. The processor 610 can be responsible for monitoring, messaging or performance from other electronic devices 105 and taking action, as discussed above. In some examples, the processor 610 can monitor the performance of various components, such as the processor 610 and memory 602, of at least one other computer in the network. In other examples, the processor 610 can depend on the aforementioned messaging protocol module 608 to take action.

Each electronic device 105 may also include additional data storage devices (removable and/or non-removable) such as, for example, magnetic disks, optical disks, or tape. Such additional storage is illustrated in FIG. 6 by removable storage 612 and non-removable storage 614. The removable storage 612 and non-removable storage 614 can store the various programs and algorithms for the monitoring and/or messaging process and can include routines for restarting applications or services on other electronic devices 105 in the system or restarting or rebooting the electronic devices 105.

Non-transitory computer-readable media may include volatile and nonvolatile, removable and non-removable tangible, physical media implemented in technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. The memory 602, removable storage 612, and non-removable storage 614 are all examples of non-transitory computer-readable media. Non-transitory computer-readable media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other tangible, physical medium which can be used to store the desired information and which can be accessed by the electronic device 105. Any such non-transitory computer-readable media may be part of the electronic device 105 or may be a separate database or databank.

In some implementations, the transceivers 616 include any sort of transceivers known in the art. For example, the transceivers 616 may include wired communication components, such as a wired modem or Ethernet port, for communicating with the other electronic device 105 in the network. Also or instead, the transceivers 616 may include modem(s) or other hardware to facilitate wireless connectivity with the other electronic devices 105, the Internet, and/or other networks. Further, the transceivers 616 may include a radio transceiver that performs the function of transmitting and receiving radio frequency communications via an antenna (e.g., WiFi or Bluetooth®). In some examples, the transceivers 616 can utilize two or more communication protocols to enable the first electronic device 105 a multiple communication channels to the second electronic device 105 b. This can enable the first electronic device 105 a to determine if, for example, one transceiver 616 is functioning (e.g., Ethernet), but another is not (e.g., Wi-Fi).

In some examples, the electronic devices 105 can be located in a test environment and can be part of a wired and/or wireless network. In other examples, the electronic devices 105 can be remotely located at, for example, a remote server bank, or a cloud storage facility. In other examples, the electronic devices 105 can simply be multiple users in disparate locations connected via the Internet, a virtual private network (VPN), or other communications network. Each electronic device 105 can be in communications with, and can control at least one aspect (e.g., hardware, software, power, etc.) of at least one other electronic device 105.

In some implementations, the output devices 618 include any sort of output devices known in the art, such as a display (e.g., a liquid crystal display), a touchscreen display, speakers, a vibrating mechanism, or a tactile feedback mechanism to provide an interactive representation of system state to the user. In some examples, the output devices can play various sounds based, for example, on whether an electronic device 105 in the system appears to be malfunctioning or is out of contact. Output devices 618 also include ports for one or more peripheral devices, such as headphones, peripheral speakers, or a peripheral display.

In various implementations, input devices 620 include any sort of input devices known in the art. For example, input devices 620 may include a camera, a microphone, a keyboard/keypad, or a touch-sensitive display. A keyboard/keypad may be a standard push button alphanumeric, multi-key keyboard (such as a conventional QWERTY keyboard), a touchscreen, joystick, or other input device. In some examples, the input devices 620 can also include communications ports on the first electronic device 105 a to enable at least one other electronic device 105 access such that it can restart applications or services and restart and/or reboot the first electronic device 105 a (e.g., kernel level access).

While several possible examples are disclosed above, examples of the present disclosure are not so limited. For instance, while systems and methods for use with computers has been disclosed, other electronic devices could be analyzed, diagnosed, and controlled in a similar manner without departing from the spirit of the disclosure. In addition, the location and configuration used for various features of examples of the present disclosure such as, for example, the order of steps, the types of physical controls, and the components of each electronic device 105 can be varied according to a particular network or application that requires a slight variation due to, for example, the size or construction of the network, the communication protocols, or the computers or other devices used. Such changes are intended to be embraced within the scope of this disclosure.

The specific configurations, choice of materials, and the size and shape of various elements can be varied according to particular design specifications or constraints requiring a device, system, or method constructed according to the principles of this disclosure. Such changes are intended to be embraced within the scope of this disclosure. The presently disclosed examples, therefore, are considered in all respects to be illustrative and not restrictive. The scope of the disclosure is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalents thereof are intended to be embraced therein. 

What is claimed is:
 1. A method comprising: sending a first signal (“SIG”) from a first electronic device to a second electronic device via a first communication channel; determining that a first acknowledgement (“ACK”) was not received from the second electronic device via the first communication channel; sending a second SIG from the first electronic device to the second electronic device via a second communication channel; determining whether a second ACK was received from the second electronic device at the first electronic device; and sending a command from the first electronic device to the second electronic device based on whether the second ACK is received from the second electronic device at the first electronic device.
 2. The method of claim 1, wherein the second ACK is received from the second electronic device at the first electronic device; and wherein sending the command from the first electronic device to the second electronic device comprises sending a command to an operating system (OS) of the second electronic device via the second communication channel to restart a network adapter associated with the first communication channel.
 3. The method of claim 2, further comprising: sending a third SIG from the first electronic device to the second electronic device via the first communication channel; and determining that a third ACK was received from the second electronic device at the first electronic device.
 4. The method of claim 2, further comprising: sending a third SIG from the first electronic device to the second electronic device via the first communication channel; determining that a third ACK was not received from the second electronic device at the first electronic device; and sending a command from the first electronic device to the second electronic device to restart or reboot.
 5. The method of claim 4, wherein sending a command from the first electronic device to the second electronic device to restart comprises sending a command at a kernel level of the OS of the second electronic device via the second communication channel to restart or reboot.
 6. A method comprising: sending a health signal from a first electronic device to a plurality of electronic devices via a first communication channel; determining whether a confirmation signal is received from one or more electronic devices of the plurality of electronic devices at the first electronic device; and taking one or more actions with the first electronic device based on whether the confirmation signal is received from one or more electronic devices of the plurality of electronic devices at the first electronic device.
 7. The method of claim 6, wherein the confirmation signal is not received from a second electronic device of the plurality of electronic devices; and wherein taking one or more actions with the first electronic device comprises sending a command from the first electronic device to the second electronic device to restart a network adapter on the second electronic device.
 8. The method of claim 6, wherein the confirmation signal is not received from a second electronic device of the plurality of electronic devices; and wherein taking one or more actions with the first electronic device comprises sending a command from the first electronic device to the second electronic device to restart or reboot the second electronic device.
 9. The method of claim 6, wherein the confirmation signal is not received from a second electronic device of the plurality of electronic devices; and wherein taking one or more actions with the first electronic device comprises: sending a second health signal to the plurality of electronic devices via the first communication channel; determining whether a second confirmation signal is received from the second electronic device; and taking one or more additional actions with the first electronic device based on whether the second confirmation signal is received from the second electronic device at the first electronic device.
 10. The method of claim 9, wherein taking one or more additional actions with the first electronic device comprises: sending a third health signal to the plurality of electronic devices via a second communication channel; determining that a third confirmation signal is received from the second electronic device at the first electronic device; and sending a command from the first electronic device to the second electronic device to restart a network adapter associated with the first communication channel.
 11. The method of claim 6, wherein the confirmation signal is not received from any of the plurality of electronic devices; and wherein taking an action with the first electronic device comprises restarting a network adapter on the first electronic device.
 12. The method of claim 6, wherein the confirmation signal is not received from any of the plurality of electronic devices; and wherein taking one or more actions with the first electronic device comprises restarting or rebooting the first electronic device.
 13. The method of claim 6, wherein the confirmation signal is not received from a second electronic device of the plurality of electronic devices; and wherein taking one or more actions with the first electronic device comprises temporarily removing an electrical signal from a relay electrically coupled to the second electronic device to cause the second electronic device to reboot.
 14. A system comprising: a first electronic device; a second electronic device in communication with the first electronic device; and a physical connection in electronic communication with the first electronic device and in physical communication with the second electronic device; wherein the first electronic device changes an electrical signal to the physical connection in response to the first electronic device detecting a problem with the second electronic device; and wherein the physical connection causes (1) the second electronic device to restart or (2) a power supply to the second electronic device to be interrupted.
 15. The system of claim 14, wherein the physical connection comprises a normally open (NO) relay; wherein the first electronic device changes the electrical signal to the physical connection by removing a voltage source to open the relay; and wherein the relay physically interrupts power to the second electronic device.
 16. The system of claim 14, wherein the physical connection comprises a normally closed (NC) relay; wherein the first electronic device changes the electrical signal to the physical connection by providing a voltage source to open the relay; and wherein the relay physically interrupts power to the second electronic device.
 17. The system of claim 14, wherein the physical connection comprises a solenoid; wherein the first electronic device changes the electrical signal to the physical connection by providing a voltage source to the solenoid; wherein the voltage source causes a plunger in the solenoid to move from a retracted position to an extended position; and wherein the solenoid in the extended position physically presses a power button on the second electronic device for a predetermined amount of time.
 18. The system of claim 17, wherein the solenoid physically pressing the power button on the second electronic device for a first predetermined amount of time causes the second electronic device to restart; and wherein the solenoid physically pressing the power button on the second electronic device for a second predetermined amount of time causes the second electronic device to reboot.
 19. The system of claim 18, wherein the first predetermined amount of time is shorter than the second predetermined amount of time.
 20. The system of claim 14, wherein the first electronic device detecting a problem with the second electronic device comprises detecting that at least one of a memory usage or a processor usage of the second electronic device exceeds 80%. 